By N Aq P

The ByN/AqP is an innovative carpark expansion joint system which offers multi-directional movement including ‘differential-vertical’. The ByN is designed as a platform over AquoP waterseal. AqP has been in use for 18 years, and has successfully waterproofed kilometers of expansion joints in commercial and public buildings including critical waterproofing of expansion joints in roof-top carparks & stadia. The ByNA is a sub-category under ByN. It has the same horizontal movement range as ByN but can be used without AqP EJ system.


Multi-directional Fire Rating Water Proof


  • Horizontal & Vertical Movement
  • Surface mounted
  • High Capacity
  • 100% Waterproof Seal Available

Compatible Finishes

  • Epoxy
  • Concrete
  • Polished/Burnished Concrete

Standard Finish




Cover Plates

Clear Anodised

Surface Mount System

Flush Mount System

By150N By150NF

Alloy Plate System